Hi. I am David and researching the very same Ancestry. Eirwen was my mother in law, and I have spent much time trying to find her place of birth. I am certain Tineke, that the present details you hold on Eirwen are correct. We thought at one period in time that England was her place of origin, but whatever we try throws up no results. If I can locate her place of birth, then I will let you know.